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Do items such as cell phone chargers, fans, coffeemakers, desktop printers, radios, etc. consume energy even when they are turned off?
What is yes.
Items such as these use energy even when turned “off.” This energy is referred to as “Phantom Energy” and can amount to up to 5% of a building or home’s energy use! Unplug appliances when not in use or try plugging a couple of your devices into a surge protector that can be clicked on and off to make things easier.